FORMULATION AND EVALUATION OF MUCOADHESIVE CLOTRIMAZOLE VAGINAL TABLET USING LIQUISOLID TECHNOLOGY

Abstract

Liquisolid technology is very effective technique for improving the solubility and dissolution properties of poorly water soluble drug formulations like Clotrimazole. Clotrimazole is a BCS Class II, antifungal drug used for treatment for Vaginal Candidiasis. In this liquisolid technique the drug soluble in non volatile solvents and then it converted into free flowing, non adherent powder, which can be compressed into tablet. Here N-methyle-2-pyrrolidone and propylene glycol is used in the ratio of 1:1 as a solvent. Neusilin US2 and Aerosil 200 used as Coating and Carrier material respectively. For mucoadhesion on vaginal wall Sodium carboxymethyle cellulose used as a mucoadhesive agent. Mucoadhesive tablets were prepared using direct compression technique. Magnesium Stearate used as a glidant. Mucoadhesive liquisolid tablets were evaluated as precompression evalutions and post compression evaluations. Future tablets were evaluated as In vitro and Ex vivo evaluations. The optimized batch showed that In vitro release in simulated vaginal fluid pH 4.5 in 6 hr was 99%. Ex vivo diffusion studies of optimized batch showed 80% of drug diffusion in 6 hr. Mucoadhesive strength showed high mucoadhesion of optimized batch that is 36 gm. From this study it was concluded that liquisolid technology is an effective technique to improve solubility and dissolution properties of poorly water soluble drug formulations like Clotrimazole.